Calculating machine



Jan. 5, 1943. 5, R D

CALCULATING MACHINE 9 Sheets-Sheet 1 Filed June 12, 1941 g INVg TORATTORNEY Jan. 5, 1943. a BRAND 2,307,105

C ALGULATING MACHINE Filed June 12, 1941 9 Sheets-Sheet 2 INVENTOR aim;

ATTORNEY Jan. 5, 1943. 5. BRAND CALGULAT ING MACHINE Filed June 12, 19419 Sheets-Sheet 3 Eff/ f Q 135 L H 1 15 H Y INVgNTOR BY O5 ATTORNEY Jan.5, 1943. 5. BRAND 2,307,105

CALCULATING MACHINE Filed June 12, 1941 9 Sheets-Sheet 4 FIGS.

IN ENTOR ATTORNEY Jan. 5, 1943. 5. BRAND CALCULATING momma 9Sheets-Sheet 5 E INVEN TOR ATTORNEY Jan. 5 1943. 5. BRAND CALCULATINGMACHINE Filed June 12, 1941 9 Sheets-Sheet 6 w W l. n/

A T TORNE Y Jan. 5, 1943. 5. BRAND C ALGULATING MACHINE Filed June 12,1941 9 Sheets-Sheet 7 I l II Wl/EELS A ITOEJJF "I" Jan. 5, 1943. s.BRAND 2,307,105

CALCULATING MACHINE 9 Sheets-Sheet 8 Filed June 12, 1941 ATTORNEY Jan.5, 1943. 5. BRAND 2,307,105

CALCULATING MACHINE Filed June 12, 1941 9 Sheets-Sheet 9 6'0 80 /09 A20#0 /0 200 22a 24W 250 Z80 309320 .740 36 0 INVE TOR W 4M ATTORNEY{aw/mars 1/5, ma MM:

Patented Jan. 5, 1943 4,004 ,iua

CALCULATING MACHINE Samuel International Brand, Binghamton, N. Y.,assignor to Business Machines Corporation,

New York, N. Y., a corporation 01' New York Application June 12, 1941,Serial No. 397,712

3 Claims.

This invention relates to calculating machines and more particularly tothe types which are adapted to receive entries according to the decimalsystem, and also to accumulate entries according to lbs. and oz. whichare according to the avoirdupois system, although as will be obviouslater, the arrangement is not necessarily limited to this system.

A principal object of the present invention is to effect the provisionof means whereby a plurality of totalizers may be selected so thatcertain totalizers may receive entries according to the decimal system,or dollars and cents, and certain other diiferently constructedtotalizers may receive entries according to lbs. and oz. under controlof a common keyboard.

A still further object of the present invention is to devise andconstruct a totalizing mechanism which is capable of receiving entriesaccording to the avoirdupois system without necessitating any changes inthe rack actuating mechanism for the totalizers, the changes beingprincipally in the totalizers themselves, whereby the accounting machinemay be adapted to receive entries according to the two aforesaid systemswith little change in the basic parts of the machine.

It is another object of the present invention to devise a totalizer sothat it will receive entries according to lbs. and oz.,in a decimaltotalilzer in which the number ofactuating teeth are unchanged, lendingthe totalizer to be actuated by the ordinary rack system for the usualdecimal totalizers. In this respect, it is a coordinate object of theinvention to automatically convert the decimal entries to lbs. and oz.when the received entries are not according to the notation of theavoirdupois system.

To make the latter more clear, the machine may enter the digit 6representing six oz. The three totalizers will represent -006 or nolbs., six oz. If 9 is then entered, the tens transfer or carry betweenthe two lower orders will cause the totalizer to represent 015- or nolbs., 15 oz. This is still the notation in the avoirdupois system. Anyfurther entry will cause the digits represented to be meaningless inthis system, although correct for the decimal system. For example, after2 is added, the totalizer will represent -01'7- and thereupon there isan automatic conversion to lbs. and oz.

In the present arrangement, this ispreferably carried out by adding 4automatically and with 4 added to 17, there will be represented O21 butsince the tens of ounces wheel can digitally represent 0 or 1,alternately, in this instance, it

will now represent 0 instead of 1. I'he transitional carry will causethe third or lb. wheel to receive a units carry to represent 1". Thewheels now represent -101- or 1 1b., 1 oz. which is correct.

Aside from the usual tens or units carry which operates from the lowerfirst order to the second order when the first wheel passes from 9-0,and also alternately by the second or tens of ounces wheel passing from1-0, there are special sensing devices which determine when the units ofounces wheel passes through six, and also when the tens of ounces wheelgoes from 0-1, and then 1 to 0. Both of these sensing devices determinethe automatic entry of 4 for the conversion to lb. and oz.

Other objects of the invention will be pointed out in the followingdescription and claims and illustrated in the accompanying drawings,which disclose, by way of example, the principle of the invention andthe best mode, which has been contemplated, of applying that principle.

In the drawings:

Fig. 1 is a perspective View of the assembled combined sorting andaccounting machine to which the present improvements are preferablyapplied.

Fig. 2 is a view in side elevation of the right side of the machine, thecabinet cover being broken away to show the interior parts.

Fig. 3 is a detail view showing the construction of theelectromagnetically controlled one-revolution clutch mechanism.

Fig. 4 is a view in front elevation of the ten key setting mechanism forsetting up the amounts represented on the records and which amounts areto be entered in the totalizers according to decimal amounts oraccording to lbs. and oz.

Fig. 5 is a fragmentary detail view taken on the line 5-5 of Fig. 4 ofpart of the electromagnetically operated mechanism for automaticallyefiecting entry of 4 when ounces are to be converted to lbs. and oz.

Fig. 6 is a detail view of the escapement mechanism utilized for the tenkey setting mechanism.

Fig. '7 is a plan view of the ten key setting mechanism.

Figs. 8 and 9 each show operating mechanism for the machine controlledby their respective cams.

Fig. 10 is a longitudinal sectional view showing the ten key settingmechanism and associated settable slides for setting the differentialracks for controlling entries in the selected totalizers.

Fig. 11 is a detail view of the operating mechanismfor shifting theactuating racks to engage the latter with. a selected totalizer.

Fig. 12 is alongitudinal sectional view of the machine showing,particularly, the actuating devices for the totalizer actuating racksassociated with a plurality of totalizers and also the asso- Fig. 16 isa sectional view taken to show the construction of the tens of 02.wheels and the associated contact operating mechanism.

Fig. 17 is a sectional view taken through a row of the totalizerselecting keys showing the various contacts controlled and operatedthereby.

Fig. 18 is a perspective view of a frame utilized in connection with thetens transfer mechanism.

Fig. 19 is a detail view showing the construction of a combined relayand restoring relay involved in the electrical part of the machine.

Fig. 20 is an electrical Wiring diagram of the machine and,

Fig. 21 is a timing diagram showing the timing of certain cam operatedcontacts involved in the electrical apparatus and also shows the timingof other contacts which are involved in the entry of amounts accordingto lbs. and oz.

General operation of machine The present improvements are preferably applied to the form of combined record sorting and accounting machineshown in the U. S. Patents No. 1,966,62 issued to F. L. Fuller, datedJuly 17, 1934, and No. 2,142,352, issued to F. L. Fuller and S. Brand,dated January 3, 1939, but it is to be understood that the presentdisclosure is merely illustrative.

The present machine is also to be considered as combined recordsortmerits, there will be given a general description of theconstruction and operation of themachine shown in this patent.

The assembled sorting and accounting machine is shown in Fig. 1 andrepresents the form of machine which is now used commercially in banksto simultaneously list and sort a group of promiscuously arranged Theoperator is provided with which have difierent classifications and inactated so as to bring a selected check sorting compartment 96 intoregistration with an aperture G35 in which the check to be sorted isinserted. The function of the machine shown in the aforerecords such aschecks..

The machine is provided with twenty-four totalizers which correspond innumber to the number of sorting compartments in the sorting drum and theindividual compartment totalizers and printing mechanisms. In the priormachine, all of these totalizers'accumulated amounts accordamountsaccording sired more than one key the related totalizers also arrangedto accumulate such entries. The totalizer associated with this key 988will, of course, give the total of the trol tapes.

The present disclosure will, therefore, be confined to the descriptionof the setup mechanism and difierential entry mechanism controlled bythe keys 426 for controlling the entry of decimal sorting compartment96. v

For a complete description of the totalizing and to Fuller et al. No.2,142,35

The ten-key keyboard mechanism for setting up amounts represented on thesorted is best shown in Figs. 4, 6, elusive and so necessary tounderstand its correlation with the ciated compartment, and thetotalizer will give the total of such amounts.

Ten key setup mechanism The machine includes ten numeral keys 42!! whichare arranged in a conventional ten-key keyboard arrangement and upon theprotruding ends of the slidable key stems 42!. Each key stem 42! (Fig.4) has a pin and slot connection to key levers 422 pivoted on a rod 423so that when a key stem is depressed, the extremity 424 of the key lever422 is raised and against the action of a spring 425.

In the differential mechanism the setup pins or stops 426 are arrangedin transverse series in which all the pins in each transverse series(Fig. 4) represent the same digit, and the pins are also arranged inlongitudinal series (Fig. 10) in numerical order, and all the pins arecapable of being selectively set to limit the movement of actuatingdevices.

As best shown in Fig. 7 slidably mounted in horizontal standards 421 isa frame plate 428 of a pin setup carriage through which the extremities424 of the key levers 422 project so as to selectively actuate andelevate a pin or stop 426 of the longitudinal series by the depressionof a key. The stops 42B are carried by said frame 428 and are guided byupper andlower plates of the frame 428. The stops 426 are raisable andwill be retained in elevated position by pins 429 (Fig. 10) of a springurged detent plate 430, there being one detent plate 430 for eachlongitudinal series of stops 426.

Pivotally mounted at 432 on each detent plate 430 is a spring urged hookor latch member 43! engaging a shoulder 433 of a rack 434 slidablymounted in the frame 428. A spring 435 attached to the rack 434 urgesthe latter to the right to cause the normal engagement of the hook ofthe latch 43! with the shoulder 433. Obviously, as a stop 42B is raisedthe notch therein will, by its cooperation with the pin 423, force thedetent plate 430 to the left against the action of a spring connectedthereto and through the hook 431 the rack 434 will be shifted slightlyto the left against the action of spring 435, and the pin 429 thereforretains the raised stop 424 in elevated position, as is shown for theraised digit stop 424 in Fig. 10 having the numerical value of 2.

Underlying each key lever 422 is a bail 435a (Fig. 4) for operating anescapement'mechanism and said bail has a projecting portion 436 carryinga screw 431 which is adjustable for timing the escapement mechanismshown in detail in Fig. 6.

The escapement mechanism comprises a plate v438 (Fig. 6) pivoted bytrunnions 439 and in tegral with the plate 438 is an escapement dog 44!!normally below an escapement rack 44! carried by the frame 423. Duringthe downward depression of a key the screw 431 being below til anintegral extension 442 (Fig. 4) of the plate 433 will rock plate 436about its pivot raising the dog 440 so as to engage a tooth of the rack.At the same time an escapement dog 443 pivoted at 444 to the plate 433is lifted out of engagement with the tooth it previously engaged andwhich is now engaged by the dog 446. The dog 443 now being above theplane of the rack 44! will be rocked clockwise by its spring 446 tooverlie the next tooth space of the rack 44!. During the restoration ofthe depressed key, a spring 441 (Fig. 4) will return the plate 438, anddog 440 will now be shifted below the rack 44! and dog 443 will now bein cooperation with the successive tooth space. The frame 423 now beingreleased by the dog 440 is now shifted by ay normally tensioned spring46!! (Fig. 7) connected to the frame 428 to an extent of one tooth spaceof the rack 44! under control of the dog 443. This form of escapementmechanism is well known and is only generally described herein.

Referring to Figs. 4, '7, and 10, a fixed plate 448 is provided with acamming portion 448a which is adapted to rock the latch arm 43! (seeFig. 10) with which it is in cooperation, unlatching it from the rack434 which is then shifted by the related spring 435 until a shoulder 449of the rack abuts the raised stop 426. Each rack 434 meshes with a gear450 having thereon numeral indicia visible through a slot 45! so thatthe numerical value of the previously depressed key is exhibited.

As will be subsequently explained the successive positions of racks 434set up under control of the ten keys 420 control the differentialposition of slides 452.

After the setting of the stops 424 has been utilized, the raised stopsare depressed to normal and the carriage returned to normal by thefollowing means. Guided in slots in side frames 41!! and 41! (Fig. 4) isa rod 412 to which is com nected links 413 (Fig; 10) which are connectedto arms 414 pivoted at 415. To one of said arms 414 there is connected alink 416 connected to a follower arm 411 carrying a roller 418 inengagement with a profile cam 419 secured to a drive shaft 94. When saidshaft is turned under control of the depression of the motor release bar31 previously described by means shown in Patent No. 2,131,912 and to besubsequently explained herein, the cam 413 will cause the rod 412 to bemoved to the left to engage with the upper beveled portions of theraised stops 426 thus depressing them to normal positlon and alsothereafter engaging the shoulders 44! of the racks 434. The

latter are moved back by the rod 412 to normal position where they arerelatched by the latch arms 43!.

For returning the frame 428 to normal position where it is held in suchposition by the escapement mechanism one of the arms 414 carries a pin46! (Fig. 10) which engages an upward extension 462 of a bell crank 453pivoted at 464 (see Fig. '7). The arm 465 of the bell crank 463 engagesa pin 466 carried by the frame 428 and as the bell crank 463 is rockedthe frame 428 will be returned to normal pos'tion and thus retensioningthe spring 460.

Differentially operated operating mechanism controlled by the setupmechanism for effecting entries in accumulators, setting printingmechanisms, etc.

It will be recalled that the machine includes a diflerential mechanismwhich is controlled by the setup echanism for eflectingentries in themanual depression. Referring to Fig. 2 the maselected accumulators, andsuch differential chine includes continually rotated drive shaft v stoodwhen their descriptlonisgiven. mounted on the shaft 94 to which gear l8!a Referring to Fig. 10, a series of slides 452 are ratchet wheel ml(Fig. 3) is secured. slidably mounted in a frame including s1de plates 1e motor release bar 97 is carried by a slid- 48| having their right endspivoted to embrace a able key stem "6 carrying a pin ill WhlCh, whenslotted and are slidably mounted by these slots by This completes acircuit as shown in Fig. 20 from a rod 683 carried by the side plates689 of the the line 48, through contacts I18, relay contacts frame. 9790now closed, clutch control magnets 680 to Each of the slides to: carriesa stud 486 at its the line 69, thus causing the energization of theright end which stud is. embraced by the bifurmagnets n39,

cated end of a related bell crank 385 loosely pivot- Attached to theshaft 94 (Fig. 3) is a disk I89 ed onashaft 486. carrying a springpressed clutch pawl i 9@ hav- The arms 385 are normally pressed againsta ing a tail lei normally engaged by a shoulder bail rod 59? carriedbetween a pair of arms 688 492 of a, clutch control arm I93 By means ofa secured to the shaft 386, by springs 489 stretched link est, theclutch control arm H93 is connected between projections 390 at the lowersides of the t n mm 195 (Fig, 2 by a pin :95 arri d by th slides 52 androds 439i carried between the arms arm I95 engaging a slot in the linkE96, said arm a8 One of the frame plates 48! carries a roller 6% by thekey stem 815. which, by the weight of the frame, eng es he The result ofthe above construction is that profile of a cam 4393 secured to the maindrive pin ill will close contacts I78 when the key shaft 9 urin therotation of the cam 393, stem I18 is depressed to cause the energizationthe left end of the frame drop t ing ie of the magnets I89. From Fig. 3,it will be seen 652 will move to he ri h un each P j i n its intoengagement with the ratchet wheel i8i, e98 strikes the correlated stud695. thus rotating the drive shaft at.

The means to eifectthe rocking movem n f At about 250 rotation of theshaft 95, cam the rod to? is shown in Fig. 8 and consists of a 7292(Fig. 20) carried thereby, will close cam pair of omplem n m 41% whichare contacts 0041, (see Fig. 21) thereby closing a. mounted upon themain drive shaft 9 3 and coi u t; t relay magnet g operafiing Withrollers carried y Curved arm The latter W111 now open the relay contactsthe sp ings 489 until the shdes are s opp d in shaft 95, the shoulder692 of the arm #93 will differential positions. The ball rod 887 contoengage the-clutch pawl 69d and disengage it tinues its counterclockwisemovement after the from the ratchet wheel 85. In this case, the slides@552- are arrested, thus merely stretching 1 1; in th li k leg l permitt m t the springs 689. of the link lad to the left without affecting theThe cams 4596 referred to then rock the bail v m nt f th m t r l a ba 91rod 48? reversely to restore the slides 352 to their When the stickrelay contacts 57% (Fig. 20) normal position. close, it will be seenthat the circuit for the It will be understood, therefore, that a seriesof relay magnet I79 extends back to line 43 to rebeil cranks 85 re iv nfe n i D i H tain its relay contacts 179a open as long as the fullyshown and described in the patent to F. L. 60 manual pressure on themotor release bar is rebe nd h f re, that the setup mechacontacts i192;and closing of relay contacts E7911.

proper entry, etc. 9'5 is held depressed.

Motor release bar 79 Keyboard for selectzmz f totalizers Accumulatingoperations and other incidental It will be recalled that the machineincludes release bar 97 previously referred to is depressed. cordancewith the classification numbers of the d such keys preis' positionedexteriorly of the machine for a determine the differential rotation of adrum of the totalizers 550 is carried by shaft lated totalizer which arecarried by the drum 95.

The keys are arranged as shown in Fig. 1 in four rows, each rowcontaining six keys, a row of keys being shown in Fig. 17. The key capscarry suitable indicia to designate the classification numbers. The keysare of the lock-down flexible type, that is to say, when a key isdepressed, it will remain latched by a detent plate I03 and the key willremain in its latched position until another key of the keyboard isdepressed, which will release the previously latched-down key andconcomitantly latch down the newly depressed key. This construction fora keyboard is well known and further description appears to beunnecessary. Each of the keys 98 is adapted to close two pair ofcontacts I05 and I01 which are closed to control circuits whichdetermine the amount of rotation to be given to the drum 95. Thekeyboard may be provided with one or more special keys such as thekeySBS as shown in 'Fig. 17.

in addition to closing the related contacts I" and I01, such keys willclose additional contacts I08 and H19 which have a function to bedescribed more in detail as the specification progresses. These specialkeys are adapted to predetermine which totalizers are to be actuated bythe differential mechanism for effecting the entry of amounts accordingto pounds and ounces, instead of the entry of amounts according todollars and cents which is effected when the other keys 98 are utilized.Y

Rack operating mechanism Referring to Eig. 12, the horizontal arm of thebell crank 485 is'bifurcated so as to straddle a stud 834 carried by avertically disposed slide 535. There is a bell crank 485 and verticalslide 535 for each denominational order. The purpose of the bell crankS85 is to transmit the movementof the slide 552 to the vertical slide535 for the purpose of actuating several totalizers to enter the amountsset up on the keys 420.

'The slides 635 are suitably mounted in the framework of the machine andeach slide carries a plurality of racks 839, all of which partake of thesame diiferential movement given to the slides 535.

Totalizers The machine is provided with a series of totalizers 850 whichare carried and supported by a disk 652 (Fig. 15) and a disk 852' (Fig.12), secured to the shaft 60 upon which the sorting drum is mounted.Obviously, when the sorting drum is rotated under control of theselecting keys 98, the corresponding totalizer 650 is brought intocooperative relation with the racks 539. mounted in the disks 552.

In view of the fact that the present invention concerns only thetotalizers 650, these will be described in detail with particularreference to their construction and the actuating mechanism therefor.The invention is, however, not concerned with the totalizers 615 and 516and these, if utilized, will be actuated in the manner explained in thepatent to F. L. Fuller et a1., 2,142,352.

The racks 639 are slidably mounted on. short slides 655 (Fig. 12) which,at their upper ends, carry studs 656 projecting through substantiallyhorizontal slots 65'! in the lower ends of the vertically disposedslides 535 so that the same movement imparted to the slide 635 will begiven to the short slide 555.

The slides are slidably mounted in a frame comprising side plates 558pivotally supported on a rod 559 and which are tied together by a rod580. The framework for the actuator racks 539, which consist of the sideplates 858, carries the associated carrying mechanism. It is pointed outthat the purpose of this framework is to effect a movement of the racks539 towards the selected totalizer 550 so as to engage the pinionsthereof and the manner in which this is effected will now be describedin detail.

Rack engaging mechanism Referring to Fig. 12, the slides 655 which carrythe racks 639 are guided by a comb 512. near the upper end of the racksand by a comb 513 secured to the frame plates 558. A bracket 5'" alsosecured to the frame plates 858 assists in guiding the racks 555 intheir vertical movement.

Referring to Fig. 11, an adding-engaging slide 584 is mounted to slidevertically on studs 585 projecting from the framework of the machine.The slide 584 is provided with a recess 58! in its right hand edge and astud 588 carried by a link 10'! normally projects into the recess 581.The link 101 is pivoted to a totalizer engaging cam arm 108 which ispivoted upon a stud 109 and the arm I08 is provided with a cam slotengaging a stud 1H projecting from one side plate 558 of the rack frame.

The mechanism for actuating the slide 584 is shown in Fig. 11 andincludes a cam H3 fast on the main drive shaft 94. A groove I H in thecam H3 embraces a stud ",5 on a follower arm H6 pivoted on the rod 630and having a pin and slot connection with one arm Ill of a lever H8pivoted on a stud H9. The right end of the other arm of the lever H8projects into a recess in the left hand edge of the adding-engagingslide 584.

At the proper time following the differential positioning of the slides452, and the vertical slides 655 which carry the actuator racks 539, thecam H3 rocks the arm H6 clockwisewhich, in turn, rocks the lever H8counterclockwise to raise the adding-engaging slide 884. Referring toFig. 11, it is clear that the upward movement of the slide 584 carriesthe stud 688 and link 101 upwardly therewith and due to the connectionof the link lil'l with the cam arm 108, this arm is rocked clockwise. Bythis movement, the cam slot in the arm "18 acting on the stud H i rocksthe frame carrying the totalizer actuator racks 639 to effect theengagement of the latter with the selected totalizer 550. Now, whenslides 835 are restored downwardly by the restoration of slides 452toward the left to their normal position, (see Fig. 10) an amountcommensurate to the amount previously set up on the wheels 45! will beentered in the selected totalizer 650.

Shortly after the vertical slides 635 are restored downwardly to effectthe item entering operation, the cam H3 (Fig. 11)- reverses the positionof arm- H6 and the lever I 18 to lower the adding-engaging slide 684.This downward movement of the slide 584 rocks the cam arm 108counterclockwise to disengage the actuator racks 539 from the selectedtotalizer 550.

Transfer mechanism Means is provided to add a unit to a totalizer wheelof the higher denominational order when the wheel of the next lowerorder passes from 9 to 0, when certain totalizers of the machine areselected for entry of amounts according to the spring 640 one additionalstep to decimal system. As will be subsequently pointed out, transfersare effected differently when certain other totalizers are selected andwhich are adapted to receive amounts according to pounds and ounces.

However, in order that this feature of the invention last mentioned maybe better understood, there will now be given a description of theoperation of the normal tens transfer mech-- anism provided according tothe decimal system.

This means includes racks 639 which are permitted to make an additionalstep of movement downwardly by springs 840 when the slides $35 and racks639 are moved downwardly to enter the amount in the totalizer. The racks639 are normally prevented from making this additional step of movementby the engagement of lateral extensions of racks 539 with ears 122 ontransfer pawls 123 which are pivoted on a rod 12s. A transfer arm 125 isslidably mounted on the rod 124 and on a stud H6 projecting from arearwardly extending arm I! 1 integral with the pawl 123. A tensionedspring "H8 extended between a projection on the arm 125 and a projectionon the arm I M 1 urges the arm 125 toward the left, said arm 125,however, being normally prevented from such movement by a hooked lever"H9 fast on a shaft I020 which is mounted in the frame plates 658. Thelever IOIB is provided with a bentover portion which hooks over a studl02l carried by the am 125. This arrangement enables the arm H1 and thetransfer arm 125 to be so connected that they are rocked as a unit, itbeing noted that the hook of the lever I M9 permits the counterclockwisemovement of the arm 125 for the purpose of rocking the pawl 123 toeffect a transfer. Each of the arms 125 extends to the left from the rod124 and forwardly into the path 01 the usual single transfer toothprovided on each of the totalizer wheels.

As the racks are carried downwardly to effect the rotation of thetotalizer wheels, a totalizer wheel may pass from 9 to so that thesingle transfer tooth thereof strikes the arm 125, rocking the transferpawl 123 counterclockwise, and since the transfer arm and pawl 123 areinterconnected in the manner previously described, the ear 122' will beremoved from engagement with the extension of the rack 639 of the nexthigher denominational order. may then continue its downward movement bytransfer a unit into the totalizer wheel of the next higherdenominational order.

When the pawl 123 is rocked counterclockwise,

it is held in its retracted position by a spring urged detent 121loosely pivoted on a rod 128 and which detent 121 engages a tail 126 ofthe pawl 123.

' Those transfer pawls 123 which are knocked down or rockedcounterclockwise during an adding operation are retained in their rockedposi-- tion until moved to unlatching position in the next followingadding operation when the detents 121 are rocked clockwise to free thetransfer pawls 123 to the action of their springs mm. The mechanism forrestoring the transfer pawls includes the shaft 123 having securedthereto adjacent the detents 121 arms 13? carrying a rod 139 projectingacross the plane of the detents 121. A link 133 is pivotally connectedto an arm 136 (Fig. 12a) pivoted to stud 7135a. The arm 136 is providedwitha slot 136, embracing a stud 135 on one of the arms 131. In order torock the rod 139 to restore the detents 121, a lever This rack 639 141secured to a Shaft its is pivotally connected to the link 133. Securedto the shaft 148 is an arm 1159 (see Fig. 9) connected by a link 15!! toa follower arm i5! pivoted on the rod 636 and carrying a stud 152projecting into a cam groove 153 in a cam 15d secured to the main driveshaft 94. Early in the adding operation the cam groove 153 rocks the arm15i clockwise which movement is transmitted by the link 15s, the arm149, shaft 143, and lever 141 to link 133. The resulting downwardmovement of the link 133 rocks the arm 136 clockwise which, through thecouplings 135 and 136 rocks the arm 131. The shaft 128 and the rod 139also rock clockwise to rock the detents 121 out of engagement with thetransfer pawls 123, to permit the springs M8 to restore these pawls totheir normal position in the path of the racks 639.

Means is also provided to raise the racks 639 to their normal positionafter they have been for the p pose of a lower to a higherdenominational order. This means includes a frame comprising sidemembers (see Fig. 18) joined by a cross bar 158 extending just beneaththe group of racks 639 (see Fig.'12). One of the upper pairs of studs151 is embraced by the other arm 158 (Fig. 12) of the lever 141, andwhen the lever 141 is rocked clockwise to release the transfer pawls123, the frame comprising the cross bars 156 and the side members 155 israised, bringing the cross bar 156 into contact with the lower ends ofthe racks 639, restoring these racks to their normal position. At

OCCUIS.

Construction of special totalizers ulating amounts according to ouncesfor accumpounds and izers and Fig. 16 shows the tens wheels 65m fortotalizers. In Fig. 15, there is also shown one of the ordinarytotalizers 6563 which receives items entered according to dollars andcents. Accordingly, if the machine is equipped with three special9,999,999-15 ounces "ati'on of the tens transfer ace-1,105

All or the nine wheels are constructed as standard ten tooth wheels soas to be actuated by the racks 839 without requiring any change thereofin the number of teeth or the pitch thereof. However, a special toothconstruction for the wheels 650a and 650i is utilized in order toprovide for the necessary carries for entries made according tosixteenths or ounces. Referring to Fig. 14, it will be noted that theunits ounce wheel 650a is provided with ten teeth which are engaged withthe related rack 039. This Wheel 6501!. is provided with a broad tooth Hwhich is in the path of the units transfer arm 125a and is actuatedthereby when such wheel passes from 9 to 0 in the customary manner. Thewheel 650u is also provided with a reduced portion which is providedwith a transfer tooth III which is also shown in Fig. 15. Assuming thatthe units ounce wheel 0501.; is at the zero representingposition, if sixunits are added to this wheel by the actuation thereto by the rack 639,the six steps of movement given to this wheel will bring the transfertooth III to engage one arm of the bell crank H2 which is pivoted upon arod H3 carried by the disks 652. crank H2 is connected to a slidableplate H4, slidably mounted on the disk 652 and carrying a lug engaging aknob H5 of insulation which is secured to one blade of contacts H5 whichare open at all times until the time that the special transfer tooth Hiengages the bell crank H2 and rocks the same counterclockwise so as todraw the plate I I4 to the right and thereby close contacts H6.Summarizing, it will be seen that when the special transfer tooth HIstops or passes through the sixth position of the units wheel, contactsI IE will close.

Referring now to the tens of ounces wheel 55%, it will be noted thatthis wheel is provided with the usual ten teeth of the tens actuatingrack 639. Every other tooth is, however, cut away so that only the teethrepresenting zero will be able to effect the operarm 125i as will beobvious from Fig. 14. The represent 1 will, of course, not actuate thetens transfer arm 125i so that the tens of ounces wheel can occupy onlyone of two digit representing positions, either 0 or 1. If the settingis at l and an additional 1 or aten is added, the wheel goes to 0.Likewise, if a carry was made from the units Wheel 6501: to the tens ofounces wheel 5501i and if the latter previously was set at i, it willmove to ii or it will move to represent 1 if previously set at 0.Whenever the tens of ounces wheel moves from 1 to 0, it causes theactuation of the tens transfer arm 325i so that a unit will be carriedto the first lbs. wheel which is the third adding wheel wd this will beefiected in the customary manner.

Referring now particularly to Fig. 18, it will be noted that alsomounted on the rod M3 is a bell crank H! which is in the rocked positionshown when the wheel 650i represents zero and in such rocked position,the hell crank it! has drawn a slidably mounted plate M8 to the right sothat its contact with an insulating knob H9 has, in this instance,opened contacts l20. When the wheel 550i is moved a single step from 0to 1, the bell crank H1 will be drawn by a spring i2I so as to move theplate ill! to the left to enable contacts I to be closed. Summarizing,it will be noted that when any of the five wide 0 teeth of the wheel650i rock the bell crank II'I, it will open contacts I20 but when Thebell which are in the plane alternate teeth which The previous closureany of the 5 narrow or 1 teeth of the wheel 650t come to rest under thebell crank N1, the contacts I20 will be closed.

It will be noted that the bell cranks H2 and H1 and related contactoperating plates H4 and H8 are mounted adjacent each of the specialtotalizer ms and move with the drum since these elements are carried bythe disk 652. The contacts H6 and I20 are, however, common to all of thespecial totalizers 650s and these are suitably mounted upon thestationary framework of the machine so that when anyone of the specialtotalizers 6508 is selected for actuation, the related contact operatingmechanism will be associated with the contacts H6 and I20. If a decimalamount receiving totalizer 850 is selected, there will be no actuationof the contacts H6 and I20 in absence of the special contact operatingmechanism and such contacts and controlling circuits, to be subsequentlyexplained in detail, will be ineffective. It is also explained that,while the units transfer arm 'I25u will be actuated in the same way bythe units wheel of either a. special or ordinary totalizer, the tenstransfer arm will be actuated when the tens transfer tooth of the tenswheel of the decimal totalizer passes from 9 to 0 in the ordinarymanner. When a special totalizer 550$ is selected,

such transfer arm will be actuated by alternate teeth of the tens ofounces wheel 65%.

Referring to Fig. 12 it will be noted that the rearwardly extending armIOI'I extends beneath contacts I22 and this is provided for the twolower orders. When the transfer arm 1251!. is rocked as the units ouncewheels pass from 9-0, its arm IOI'lu (Fig. 13) willbe close contacts 22mand for the tens of ounces wheel it will be recalled that the transferarm 125i will be actuated by alternate teeth of the wheel 65%, thatis,,each time the wheel 550t goes from 1-) the contacts 122i (Fig. 13)will be closed by the related arm iiillt.

Examples of operation As an example, with a totalizer 550s selected foractuation and assuming it to be standing at zero, 5 represent ng fiveounces may be entered. The units ounce wheel 5501!. will be turned fivesteps but contacts H6 will remain opened. It will be noted from Fig. 20that when the key 988 corresponding to such totalizer is depressed, itscontacts E08 and I09 will he closed. Assuming, in the followingoperations, that the same totalizer is successively selected, for entryoperations 1 representing one ounce may then be entered. Contacts H6(Fig. 20) will now close. of contacts I09 by key 988 will energize arelay i23 to close its contacts l23a and H312 and the closure of relaycontacts i23a will cause a. relay I20 to be energized (since contacts li6 are closed) which will close its contacts lZ ia which are nowlatched. Referring to Fig. 19, it will be seen that when magnet E24 isenergized, the armature I26 will be attracted to close contacts I24a,and that the armature i26 will be latched by a detent plate I21 which isthe armature of a restoring magnet 125. Hence, even though the unitswheel subsequently passes beyond 6, contacts I23a will remain latched inclosed position.

The circuit which includes the relay contests I2da is from line 49,through cam contacts CO2, relay contacts 124a now latched closed, keyoperated contacts I08 now closed, and to transfer contacts I20 which areyet open because wheel 550i is at 0, so that the circuit is opened atsuch ee wheels now represent 0-06, to close the circuit to the solenoida repeated ssumed that 4 ounces will then be energization thereof willhave been prevented by entered in the same totalizer. the followingmeans:

The units wheel 050a now passe from 9 to 0 When the contacts I32-I33transfer a circuit and in this operation a number of additional opcamcontacts CC I, relay erations occur. The units wheel 650a leaves thecontacts I 3I 11 now closed, through contacts I 33, 6" position andcontacts H6 open, thus deenerthrough the relay magnet I 3% to cause itto open gizing relay magnet I24. As this wheel passes its contacts I34aand I34b, thus opening the cirfrom 9 to 0, its transfer arm 125a will berocked cult to the relay magnet I3! and solenoid I35. to close contactsI22u and the usual mechanical l0 Relay magnet I3I is held energizedthrough its transfer will be effected to the ten of ounces stickcontacts I3Ia. Relay magnet 534 also wheel 6502. Contacts I 2214 closeto cause relay closes its stick contacts I340 completing a stick magnetI 25 to be energized to unlatch contacts circuit extending back to line39 through cam I2fia. The tens wheel passes from 0 to 1, thus contacts0C3 which are now closed. causing contacts I20 to close. These contactsI20 15 When the core I37 of the solenoid returns, conare closed at thetermination of the entry and tacts I32 close and thus a circuit will beclosed the three wheels now represent 0-10, or no from line 49, throughcontacts CCi, relay conpounds and 10 ounces. tacts I3l b now closed,contacts I 32 now closed,

It will now be assumed that 8 ounces are added relay contacts I33a nowclosed, to a relay magnet to the totalizer which, added to 10 ouncesprevi- I45, to the line 48. Relay magnet M3 closes its than a pound. Themachine now efiects additended back to line 40 through cam contactstional operations to convert 18 ounces to pounds CCI. Relay contactsI45b close and such conthrough the six position, contacts I I6 closethus mg the circuit to the clutch control magnets I80 energizing therelay magnet I24 and causing the just as if the release bar wasdepressed in the latching of relay contacts I24a in closed position.manner previously described.

Fig. 21 shows the timing for a series of cam The energization of relaymagnet I34 is maincontacts CCI, 0C2, and C03 and the cams for tained bycam contacts C C3 through the stick closing such contacts are fast todrive shaft 94. contacts I340 so that contacts I34b are kept The timefor opening and closing contacts I 22a, open when transfer contacts I32close to thereby I22t, H6, I20 isalso shown in Fig. 21. At the prevent arepeated energization of solenoid I3I time relay contacts I 24a areclosed, cam contacts and also to keep contacts I34a closed to enablefrom line 49, through (1C2, through relay con- 35 upon the closure ofcontacts I32. tacts I24a now closed, contacts I08 now closed, From Fig.21, it will be noted that'cam concontacts I20 closed because wheel 650iis at 1 tacts 003 open early in the cycle in which the (see Fig. 16,relay contacts I34a normally closed, "4 is entered which would releaserelay I34 to and through a relay magnet I3I to the line 48. to causecertain operations at this time which Hence, relay magnet I3I will nowbe energized 40 should be prevented. This is taken care of by with thefollowing effect: At the end of the entry providing contacts I450 whichare in series with stick circuit for solenoid I3I through its conthetime contacts CO3 open, relay magnet I34 t t lam (Fig, 20), will be keptconnected across the lines 48 and At the close of the 8 entry cycle, camcon- 50 40. Hence relay magnet I34 will be maintained tacts CCI closethus closing a circuit from the energized until cam contacts CCI openbut at line side 49, through contacts CCI. relay conthis time camcontacts CO3 are again closed closed, through solenoid I35 to line 68.The soleuntil cam contacts C03 open early in the next noid $35 is alsoshown in Fig. 4. cycle, which is the cycle of operation following From,Figs. 4 and 5, it will be observed that the that in which the 4 isautomatically entered. key stem MI of the 4 key has pivotally con- Inthe automatically initiated cycle of the nected thereto by a stud I 36the core E3? of the machine, a 4 will be automatically entered solenoidI35, the core being attracted within the to be added to 18 in the lowesttwo adding solenoid when the latter is energized to draw the wheels.This will cause to be represented 4- key downwardly and set up the 4 pinin after the addition in the units wheel. As the the same way as if thekey was manually deunits wheel 050a passes from 9 to 0, a transfer r d,will be effected to the tens wheel $502. which Contacts 32 are normallylatched by a latch was at 1. This will now pass to and the lever 539pivoted at M0 to a bracket I M When two lowest ounce wheels willrepresent -02. As the solenoid core I3! is attracted downwardly a thetens of ounces wheel $5M passes from pin it carried thereby will rockthe lever E39 to to 0, it will actuate the related tens transfer allowcontacts I33 to close. This will deenergize transferred to the third orpounds wheel, T i327 will shift the intermediate contact blade and andounces.

close contacts I32 which are thereupon relatched At the time the unitswheel 650a goes from by a latch lever H39. While this will again tend 9to 0. it closes the contacts I22u which com- CC2 are closed so that acircuit is now closed an impulse to be sentto the relay magnet I48.

, of ounces wheel.

asomoa pletes a circuit through relay magnet I25 which thereupon engagesand attracts its armature I21 (Fig. 19) to unlatch contacts Illa.

that the two ounce wheels represent ounces, there will be described theoperation when ten ounces are added thereto. The tens of ounces wheelmoves from 1 to 0 and in so doing, contacts Int are closed by thetransfer arm "St and contacts I20 which are closed at the 1" positionopen when passing to the 0" position by the addition of a unit to thetens Contacts I22t close during the time for the adding operation whilecontacts CC! are closed. Hence a circuit will be closed from line 49,through C02 now closed, contacts Iflt now closed, relay contacts I34anormally closed, to the relay magnet I3I to line 48. The operationsthereafter are the same as previously described and effect the automaticinitiation of the next cycle and the automatic entry of 4". Theconversion of ounces to pounds and ounces will enable the representationof 1 pound 04 ounces. Of course, there is a transfer from the tens ofounces wheel to the first pounds wheel occasioned by the actuation ofthe transfer arm "it so that the first lb. wheel will represent 1", inthe problem assumed.

The circuit arrangement has been described in connection with a singlespecial totalizer 850s and the parts involved for such totalizer havebeen designated in Fig. 20 and referred to. It will also be observedthat contacts 6, I20, I221; and I22t are common to a series of specialtotalizers 6505. The circuit arrangement is obviously duplicated foreach of the special totalizers 6508, particularly in the provision ofrelay magnets I23, I24 and I25 and this brings out the necessity forlatching the contacts I24a in closed position. Whenever a relay magnetI24 associated with a special totalizer is energized and its contactsIfla latched, the same totalizer may or may not be actuated during thenext operation of the machine. For instance, a particular totalizerhaving its relay I24 energized may go out of operation for an indefinitetime while other totalizers are being employed for adding operations.Hence, the necessity for latching the contacts I241: closed to therebystore up an indication that the units'wheel of the special totalizer inquestion has reached a 6 position is apparent. The storing up of suchindication is essential so that when the totalizer is again brought intooperation, the previous latching of the contacts IZla closed inconjunction with the closure of contacts I20 by the same totalizer willefiect the automatic entering cycle of in the manner previouslydescribed.

While there has been shown and described and pointed out the fundamentalnovel features of the invention as applied to a single modification, itwill be understood that various omissions and substitutions and changesin the form and details of the device illustrated and in its operationmay be made by those skilled in the art without departing from thespirit of the invention. It is the intention, therefore, to be limitedonly as indicated by the scope of the following claims.

What is claimed is:

1. In a calculating machine of the class in which the cyclic motoroperation of the machine is efiected by the operation of a motor releasebar to engage the motor clutch, said calculating machine including aseries of digit keys and including a 4 digit key to enter "4 in thelowest "order accumulator wheel, the combination of an accumulatorconsisting of a series of ten toothed accumulator wheels, all of whichrepresent o-o except the second order wheel which alternately represents0-1, transfer mechanism for effecting a units carry to the next higherorder wheel when the next lower order 0-9 wheel passes to 0,supplemental transfer mechanism under control of the second order wheelto transfer a unit to the next higher order 0-9 wheel each time thesecond order wheel passes from 1-0, control means operable coruointlyunder control of the lowest order wheel and the second order wheel andoperated when both of said wheels represent 16, 1'7, 18 or 19 after anentry therein, and under control of the second order wheel alone whenthe latter passes from 1-0 by an entry of 1 therein and the lowest orderwheel represents either 0, 1, 2, 3, 4, 5, and sequentially operatedmeans initiated in operation by said control means comprising means tofirst cause the operation of the 4 digit key, and additional meansoperated after the operation of the 4" digit key to cause the operationof the motor clutch, whereby a subsequent cyclic motor operation of themachine ensues to enter 4 in the lowest order 0-9 accumulator wheel.

2. In a calculating machine of the class in which the cyclic motoroperation of the machine is effected by the operation of a motor releasebar to engage the motor clutch, said calculating machine including a tenkey keyboard and a plurality of series of digit setup pins forcontrolling entries therein, the combination of an accumulatorcomprising a series of ten toothed accumulator wheels, all of whichrepresent 0-9 except the second order wheel which alternately represents0-1, transfer mechanism for effecting a units carry to the next higherorder wheel when the next lower order 0-9 wheel passes to 0,supplemental transfer mechanism under control of the second order wheelto transfer a unit to the next higher order 0-9 wheel each time thesecond order wheel passes from 1-0, control means operable conJointlyunder control of the lowest order wheel and the second order wheel andoperated when both of said wheels represent 16, 17, 18 or 19 after anentry therein, and under control of the second order wheel alone whenthe latter passes from 1-0 by an entry of 1 therein and the lowest orderwheel represents 0, 1, 2, 3, 4, or 5, and sequentially operated meansinitiated in operation by said control means comprising means to firstcause the operation of the 4" digit key of said ten key keyboard to setthe 4" digit pin of the series controlling the entry in the lowest orderwheel and additional means operated after the operation by said 4 digitkey to cause the operation of the aforesaid motor clutch, whereby asubsequent cyclic motor operation of the machine ensues to enter 4 undercontrol of the 4 digit setup pin in the lowest order 0-9 accumulatorwheel.

3. In a calculating machine of the class described in which the cyclicmotor operation of the machine is efiected by the operation of a motorrelease bar to engage the motor clutch, said calculating machineincluding a series of digit keys and including a 4 digit key to enter 4in the lowest order accumulator wheel, the combination of an accumulatorfor accumulating amounts according to lbs. and oz. comprising a unitsoz. wheel, a tens oz. wheel alternately representing 0 and l and aseries of lbs. wheels of successively higher denominational order,trans- 1e2- means to efiect a unit carry to a lb. wheel of clutch. arelay energized jointLv under control of higher denominational orderwhen a lb. wheel oi the that named electrical contact means when thelower denominational order passes from 9-0, all latter is set by theunits oz. wheel representing 0! said lbs. and oz. wheels having tenteeth for 6, 7, 8 or 9 and the supplemental electrical conentrypurposes, transfer mechanism intermediate 5 tact means when the latteris set by the tens oz. said units and tens oz. wheel to move Bald tenewheel at l, and under control oi the additional oz. wheel to "1. from "0actuated under control ntact means alone when the tens 02. wheel of saidunits 02. wheel in passing from 9 to ll. from 1' to 0 by an entry of ltherein and transfer mechanism intermediate the tens oz. wheelrepresents either 0, 1, 2, 3, wheel and tha first lb. Wheel gctuatedundar C011- 4 or 5 mean in operation aid relay trol of said tens oz.wheel ween the letter passing far a tbs operation 027 electromagneticfrom to electrical contact means set anm a 1 mmmuse the operation 0g maW mg; by del' eontrol of sale! units 02. wheel when the letterls et6 orhas gone beyond to repeeseht either and means initiated in ommflon bysaid q a or 9, supplemental eleemcal wmacfi mam 15 tromegnetlo means tocause the operation cl sald set under control of said tens oz. wheelwhen the electmmgmt W Operate eelel meter clutch, latter passes from o wl, and additional contact whereby the cyclic motor Operation ex saidmeens set by said last mntmnsier lqi 'l l ce ensues to enter "4" in thelowest order when the tens 02. wheel passes hem l-e, en elee wheel.tromagnet to efiect the operation of said motor 243

